EP 0120189 B1 19870729 - VEHICLE TRANSMISSION CONTROL DEVICE FOR MONITORING THE MAXIMUM TORQUE
Title (en)
VEHICLE TRANSMISSION CONTROL DEVICE FOR MONITORING THE MAXIMUM TORQUE
Publication
Application
Priority
DE 3311295 A 19830328
Abstract (en)
[origin: EP0120189A2] 1. Control device for a vehicle driven by a motor by way of a transmission that preferably changes the transmission ratio in steps, which device has the following features : a) there is provided a store (36) recording the characteristics of the motor for ascertaining the instantaneous driving torque MA delivered by the motor (6) ; b) there is provided a sensor (16) registering the number of revolution per minute nR of at least one vehicle wheel (15) of which the output signal can be fed to a differentiating device for ascertaining a magnitude s of acceleration derived from the variation with time of the number of revolutions per minute of the vehicle wheel (15), c) there is provided a weight-assessment means (30) for calculating the weight of the vehicle from the instantaneous driving torque MA and the magnitude s of acceleration ; d) there is provided a torque-control device (24) for calculating a steady driving torque Mstat , which is necessary for driving the vehicle without acceleration, from the instantaneous torque MA , the vehicle weight G and the magnitude s of acceleration ; e) there is provided a transmission-control means (18) which, for the intended new gear, compares the steady torque M'stat with the maximum and the optimum torque of the motor and releases a control signal (46) for blocking a gear shift control (50) if the maximum or the optimum torque is exceeded ; f) the transmission-control means (18) contains a comparison device (45) which serves to store the maximum or optimum torques of the motor.
IPC 1-7
IPC 8 full level
F16H 59/14 (2006.01); F16H 61/02 (2006.01); F16H 59/48 (2006.01); F16H 59/52 (2006.01)
CPC (source: EP)
F16H 59/14 (2013.01); F16H 61/0213 (2013.01); F16H 59/48 (2013.01); F16H 59/52 (2013.01); F16H 2059/142 (2013.01); F16H 2061/161 (2013.01)
Citation (examination)
EP 0111636 A2 19840627 - WABCO WESTINGHOUSE FAHRZEUG
Designated contracting state (EPC)
AT CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0120189 A2 19841003; EP 0120189 A3 19850417; EP 0120189 B1 19870729; AT E28599 T1 19870815; DE 3311295 A1 19841004; DE 3465045 D1 19870903
DOCDB simple family (application)
EP 84100351 A 19840114; AT 84100351 T 19840114; DE 3311295 A 19830328; DE 3465045 T 19840114